I to the see the film Alice in Wonderland last night but for the fact that I was busy prep

问题补充：

I to the see the film Alice in Wonderland last night but for the fact that I was busy preparing for the English exam.

A. must have gone

B. must go

C. might have gone

D. might go

答案：

A. must have gone

B. must go

(答案→)C. might have gone

D. might go

解析： 句意：要不是我昨晚忙着准备英语考试我可能已经去看Alice in Wonderland这部电影了。表过去本可以做某事，实际上没做用C项。must have gone是肯定做了某事，不符合题意。